3.1.4 Transmit Common Mode Level

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Transmit common mode level is used as a percentage—50% or 60% or 70% or 80%—of full common mode level or VDDA. It is only adjusted when DC coupled (for example with SDI or high CID protocols). This is to match the common-mode restoration to the DC coupled receiver. For AC coupled systems, the level must remain as default.

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